According to data from Forbes, the Dallas Cowboys are the most valuable sports team in the world. The franchise is valued at a whopping $4.2 billion, half a billion more than any other team. Oil magnate Jerry Jones purchased the Cowboys for $140 million back in 1989.

Together, the NFL's top four franchises are worth approximately $13.7 billion, more than those of any other league. Three European soccer teams — Manchester United of the Premier League and FC Barcelona and Real Madrid of La Liga — also cleared the $3 billion mark, along with two NBA franchises and one from MLB.